Identifying the selected option on a Switchboard for later use

[Lyn]

I have three Switchboards containing a MAIN Menu, and ENTRY Menu and an EDIT Menu. Before I enter further data I first of all open a form to enter the patient ID to check that the patient exists, then depending on what option was selected, say the option to enter a follow-up, I would then wish to open the form for entering follow-up data, or if it was an Adverse Event I would wish to open that form
I therefore need to be able to determine the currently selected option on the current Switchboard
Any suggestions on how I do this?
Thanks